Fan



J. DAUSTER.

' FAN. APPLICATION FILED MAR- 20, I918.

1,339,169, v Patented May 4, 1920.

2 SHEETS-SHEET 1.

. INVINTOR ATTORNEY J. DAUSTER.

FAN. APPLICATION FILED MAR- 20, 1918.

Patented May 4,1920.

2 SHEETS-SHEET- 2.

'INVEINTOIR Joiziz Jami/3r ATTORNEY JOHN DAUSCER, OE WILKINSBURG,PENNSYLVANIA.

FAN.

Specification of Letters Patent.

Patented May 4, 1920.

Application filed March 20, 1918. Serial No. 223,567.

To all whom it may concern:

Be it known that I J OHN DAUsTER, a citizen of the United Statesresiding at Wilkinsbur in the county of Allegheny and State ofTennsylvania, have invented new and useful Improvements in Fans of whichthe following is a specification.

This invention relates to fans and more particularly to a constructionof fan that will be operated in the movement of a rocking chair and hasfor its primary object to provide a device of this character of simpleconstruction in which the parts are so associated and constructed thatthe speedof travel ofthe fan proper may be properly regulatedirrespective of the rocking operation.

An object of the invention is the novel manner of transmitting motionfrom the chair to the fan and in such a manner that the same will bepractically noiseless.

Besides the above my invention is distinguished in the manner ofregulating the tension of the spring which in turn regulates themovement of the fan proper.

With these and other objects in view the invention will be betterunderstood from the following detail description taken in connectionwith the accompanying drawings wherein Figure 1 is a diagrammatic viewshowing my invention applied to a chair.

Fig. 2 is an enlarged sectional view of a portion thereof.

Fig. 3 is a side elevation of the upper portion of the device.

Figs. 4, 5 and 6 are detail views of the tube mechanism.

Figs. 7, 8 and 9 are detail views of the other portion of the invention.

Again referring to the drawings and more particularly to Fig. 1 it willbe seen that the seat 1 of the rocker 2 has secured thereto a tube 3which at an intermediate point is provided with slots 4 encircled bythreads 5 arranged exteriorly of the tube for a pur pose to be describedlater.

Pivoted to the upper end of the tube is a bell crank lever 6, one end ofwhich has a pivoted connection to a rod 9 that is slidably mounted inthe tube 3. At its lower end this rod is connected. to one end of a link10 that is also pivotally connected as indicated at 11, to an arm 12extending from the tube 3. From this arrangement it will be seen thatupon swinging movement of the link 10 the rod 9 will be givenreciprocatory movement, which movement is transmitted to the fan throughthe bell crank 6. The speed of travel of the rod 9 1s regulated .byvarying the tension of a suitably located tension device that consistsof a spring 13 housed within the tube and encircling the rod with oneend bearing upon a collar 14 fixed to the rod 9 and the other endabutting a collar 16 slidably mounted on the rod and provided withfingers 16 slidable in the slots 4.

ooperating with the fingers and engaging the threads 5 is a nut 17 bymeans of which movement may be given to the collar 16 and the springcompressed. By arrangement of the spring 13 as set forth. it will beseen that upon tightening nut 17 the power of the spring may beincreased or decreased thereby regulating the speed of travel of the rod9 in its downward direction. In other words, the stronger the power ofthe spring, the quicker the rod 7 will travel in a downward direction.As the rod 9 is connected to the fan, the speed thereof is regulatedaccordingly. The speed of travel of the rod 9 is increased as thetension of the spring is increased and thus it will be seen that in avery simple manner I am able to regulate the speed of the fan 8irrespective of the rocking operation of the chair. For the purpose ofautomatically moving the link 10 in the operation of the rocking chair Iprovide a disk 18 supported for rotation directly below the tube by thehanger 19. This disk has laterally extending projections 20 which may bestruck from the disk or cast with the disk.

In the arcuate movement of the disk these projections successivelyengage and raise the link 10, the spring 13 returning the link aftereach movement.

The shaft 21 of the disk has keyed thereto a ratchet 22 continuouslyengaged by the dog 23 supported by the arm 24 loosely journaled on shaft21 and for the purpose of assuring rapid movement of the disk I providea second arm 25 identical in con struction to the arm 24;. Each arm hasconnection with a link 26 that is in turn pivotally connected to one endof a lever 27 pivotally connected to the runner 28 of the chair asindicated at 29. To reduce friction, that end of the lever 27 engagingthe floor supports a roller 30. When it is found necessary to render thefan inactive I provide a clip 81 adapted to engage under the lever 27and hold the same in inoperative position as clearly. shown in Fig. 9 ofthe drawing.

From the foregoing description, it will be seen that upon rocking thechair with the rollers 30 in active position, the disk 18 will berotated and through its intermittent connection with the link 10, thelatter will be reciprocated which in turn slides the rod 9 upwardly. Thespeed of travel of the rod 9 downwardly will be regulated according tothe tension of the spring 13.

It is to be understood thatv while all of the several features of myimproved mechanism have special cooperation with one another andtogether constitute a particularly effective mechanism for the purposein view, certain of these features may be applied in other relations,and I therefore desire to cover the combinations present in the severalparts of my improved mechanism whether employed in the generalorganization shown or elsewhere.

It is further to be understood that the structural embodiment of theinvention as a whole and its various features as shown is merelyillustrative and not restrictive since I am well aware that many of thedetails of construction can be widely varied without departing from thespirit of the invention I therefore do not desire to be limited in theseparticulars or in any others, except as set forth in the appended claim.

What. I claim is:-

A fan attachment for rocking chairs comprising a tube, upstandingtherefrom, a disk rotatably supported by the tube, a link arranged to beoperated by the disk, a fan pivotally connected to .the tube, a rodslidably mounted in the tube and connected to the fan and link, meansfor giving intermittent movement to. the link when said chair is rockedand an adjustable coil spring arranged to, regulate the speed of travelof said rod in a predetermined direction.

In testimony whereof I affix my signature.

JOHN DAUSTER.

